Electrically-heated soldering and branding iron.



No. 878,952. PATENTED PEB.11, 1908.

HBBTZBBRG & M. JFWOHL; ELBGTRICALLY HEATED SOLDERING AND BRAND ENG IRON.

APPLICATION FILED APR.5, 1907.

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UNITED STATES PATENT orrron ELECTRICALLY-HEAIED SOLDERING AN D BRANDING IRON.

No 878,952. Specification of Letters Patent. Patented Feb. 11, 1908.

Application filed April i1907- 3crial No. 366.53%

To all 11:72am it may concern:

. veyed. away from the electrical resistance or ,Be it known that we, HARRY T'TERTZBERG rheostat.

and MiitRiCE J Wont, citizens of the Ynited The body or mass A may be composed of States, residing at Xew "York, borough of i anysuitablc or appropriate material, but the 5 Brooklyn, county of Kings, and State of material which we prefer to employ is copper New York, have inyented certain. new and because of its well known capacity to heat useful Electrically-Heated Soldering and up quickly and to absorb and retaiiithe heat.

Branding Irons or which the following is a 5 As shown, the body A is intended to be cast specification. in a single piece, and it is preferred to pro- 10 This invention is a soldering iron or branding iron in which we employ means for electrically heating a mass oi metal to a required temperature for the operation of melting solder, or for branding purposes. or for other 15 purposes in various arts.

l ride said body with. a chamber, a, which l chamber is open at one end of the body and l is closed at. the opposite end by a solid wall (1 -'\t the open end of the body, it is prel erred to provide tongues 11" on two-sides of l the body, and at the closed end said body is The object'ot this invention is to heat a formed with a tcnon Ii, the latter being exmass of metal to a required temperature in a ternally threaded and projecting beyond the brief time, and, further, to keep the device in l wall 11 which l'orms said closed end of the service with a minimum consumption of c'lccbody.

20 trical current, whereby the implement or del The soldering iron ol' our invention is pro- Y vicemay be brought quickly to a conditimi vided, prel'erably, with a removable tip B,

for service, and said device is rendered ecothe latter being cmnposed of suitable mate nomical in the consumption of the current. 1 rial, sllr'li as copper, said tip being provided The broadly new feature of the present inl with a l'emalc threaded socket into which is 25 ention is a means for securing good mcchanscrewed the lcnon I). The tip B may be of ical contact between a mass of heat absorbany prcl'crrcd l'orm, such as the tapering ing metal and an electrically-oporatcd heater l'orm shown in Fig. 1. and said tip is screwed or resistance, the latter belng, preferably, inon the lcnon so that it will hare good conclosed within or by said. mass 01 metal. tact with the body or mass of metal A. The

30 in the accompanying drawings, we have 'tip is adapted to be heated quickly by ab- .iliustrated one practical en'ibodin'ient of the sorbing heat from the body A, thus making invention, but the construction shown thercthe device very useful in soldering operations. in is to be understood as illustrative only, Should the tip become coated with a metallic and not as defining the limits of the inveniihn to such an extent as to impair its use 35 tion. fulness, it may be readily detached from the Figure is a longitudinal section, partly in iron, and replaced byancw or fresh ti p. Anelevation, of a soldering iron constructed in other advantage of this construction is'that accordance with this invention; Fig. 2 is a pointed tips, ilat edged tips, or tips of any cross section on the line 22 of F ig. 1. Fig. preferred form, may be used in connection 40 3 is a side elevation partly insection reprcwith one and the same body A.

seating a branding iron embodying the in- The chamber o of the body is adapted to vention, and Fig. lis an end View of the contain an electrical rheostat or heating apbranding iron shown in F 1g. 3. phance, and 1t desired said body may be In the construction shown in Figs. 1 and 2 equipped with a plurality of heating coils. 45 of the drawings we haverepresented a solderl In Figs. 1 and 2 we have shown the soldering ing iron, consisting ofa body or mass ofheatl iron body A as provided with two spaced absorbing metal A, an electrical resistance l heating elements C, D, the same being arrheostat inclosed within or by said mass of l ranged in contact With the opposite walls of .rne'tal, means whereby said electrical resistthechamber a. Said heating elements may so ance or rheostat held in close mechanical l be of any well known construction, but we contact with the body,or mass of metal, a shank attached to said body or mass of manner to expose arelatively large area of an metal, and means whereby a current of elecelectrical resistance to good mechanical contrical energy may be supplied to and contact with the mass of metal, and to electricprefer to construct each heating element in a provided I with an inclined ally insulate said resistance from the mass of metal. Each heating element consists of a core 0, a resistance wire or ribbon c coiled or wrapped on said come, and layers d, d of iiisulating material applied to the opposite sides of the core 0 and in engagement with-the winding of the resistance wire or ribbon c thereon.

As shown in Figs. 1 and 2, the layers at of the heating elements 0, D, are in contact with the opposite Walls of the metallic body or mass A, while the other layersd of said heating elements C, D, e: opp

osed to each other and separated within the chamber a of said body. This arrange 'nent separates the two heating elements C, D, and the resistances c of said heating elements are next to the opposite walls of said body.

It is important to secure good mechanical. contact of the heating elements with the metallic mass in order that the heat developed in the-electrical resistances c of the'plurality of heating elements may be absorbed quickly and to the best adyantage by the metallic mass. For securing this end, we have provided novel means for-separating the heating elements and forcing them tightly against the v side walls ofthe body or mass, said separating means being exposed to the heat opsed by a o in contact with the body or mass A for conducting heat thereto.

.w. The means referred to is embodied preferably in the form of cooperating metal wed es E, F, the same being composed pref:

erab y of heat absorbing and conducting material, such as copper, each wedge being side or face and I ,with a fiat straight .face or side.

In assembling the parts composing the soldering iron, the heating element C, D, are

- placed within the chamber a, of the body, the

wedge E is inserted large end foremost into the chamber so that its fiat side or face is in engagement with the layer d; of the heating element D, and then the-other wedge is "inserted,'its flat side or face being in engagement with the inner layer (1 ofthe heating element C. The wedge F. engages with the wedge E, and owing to the inclination of't'he faces of said wedges, the operation of driving home or forcing the Wedge F to its proper 1plosition causes the two wedges to press the eating element 0, D, into good mechanical contact with the opposite side walls of the body A. The wedges are pressed tightly together, and at their edges they engage with other walls of the body A, as shown in Fig. 2, whereby the edges are adapted to be heated'by the heat developed in the resistances c of the two ,heating elements, and said wedges transmit or communicate the heat absorbed thereby to the walls of the chambered body or mass A.

it may be stated that we prefer to censtruct each heating element 0, D, with a core (levelthe electrical resistances and being -ments and is conveyed away by conductor. Wedo not desuahowever, to

erases c composed of a thin layer of mica, and that the insulating layers d, d are composed also ofmica. This material is advantageous for the reason'that it permits of tlieready transmission of the heat of the electrical resistance wire or ribbon cand serves, also, to electrically insulate the resistance wire or ribbon from the body ormass A and the wedge which engages with said heating element.

lVith the body A is associated suitable means for conveniently handling and manip ulating it. As shown in Fig. 1, we employ a hollow stock G, the same being composed of a perforated metallic tube. One'end of the tube is insert'ed between the-tongues a of the body, and through said stock and the aforesaid tongues is assed a fastening screw g,

-thus mechanica yattaching the stock to the body Said stock; is provided with a suitable handle g composed preferably of a niaterial which is a non-conductor of heat, and the stock is lined ith asbestos, indicated at H, or other non-conductor of heat. The current is supplied to the electricalheaters by suitable conductors which are inclosed by the lining El ,When the resistances of the electrical heating elements are connected in series as shown in Fi i one conductor is in circuit with the resistance of one heating element and the other conductor is connected to the resistance of the other heater, "whereby the current of electric energy supplied by one conductor passes through the heating elethe other confme ourselves to the arrangement of a plurality or" electrical heating elements in serice, for the reason that said heating ele ments may be connected in multiple.

in Figs3 and 4 of the drawings we have 3 shown our inventionas embodied in a branding iron. The body A of said ironis provided with electric heating elements and the cooperating wedges constructed as heretofore described and represented in Figs. 2. The body A of said branding iron is provided with branding member J, .the latter chambered body or mass of metal, a heatin clement comprising a core of insulating material and a winding on said core, said heat ingeleinent being within said body or mass of metal, wedging means for clamping the heating element into mechanical contact with said body or mass of metal, and meansfer 1 and electrically *insulating the heating el'emend .from thebody or mass of metal and the wedging ineans. I .2. In a device of the class des'cribed, a chambered body or mass of metal, a plurality of electrical heating elements therein, a wedging means for clamping the individual heating elements into contact with opposite walls of the chamber in said bodyor mass of metal.

3. In a device of the class described, a chambered .body or mass of metal, a plurality of'spaced electrical heating elements therein; each heating element having a coil independent of the coil of the other heating element,

and interposed wedging ?16&I1'S between the heating elements for clan ping the latter into close mechanical contact with opposite walls of the chamber in said body orinass of metal.

4. In a device of the class described, a hollow body or mass of metal, a plurality of electrical heating elements therein, and inter-' posed cooperating wedges for clamping said heating elements at one operation into close mechanical contact with said body or mass of metal.

In a device of the class described, a hollow body or mass of metal, a plurality of electrically-operated heating elements therein, and wedges forclamping said heating elements into close engagement with said body or mass of metal.

6. In a device of the class described, a hollow body or mass of metal, a plurality of electrically-operated heating elements therein, and cooperating wedges engaging with the respective heating elements. for clamping them into close mechanical contact with said I body or mass of metal.

' 7. In a device of the class described, a body or mass of metal, a heating element therein, and a plurality of cooperating wedges for clamping the heating element in close engagement with said mass of metal.

8. In a device of the class described, a body or mass of metal, a heating element therein, and a plurality of cooperating wedges engaging with the heating element, said wedges having metallic contact at their side edges with the body or mass of metal.

9. In a device of the class described, a body or mass of metal, a heating element therein, and wedging means composed of heat-conducting metal engaging on one side with the heating element, said wedging means engaging at a plurality of its edges directly with the body or mass of metal.

10. In a device of the class described, a body or mass of metalyaiielectrical resistance wound on a core of'insulating material and inclosed within said body or mass of metal, insulating layers inclosing s'aidre'sistance frpm metallic contact with the body or mass of metal, and wedging means opposite to one of said insulating layers and,clamping said resistance into mechanical contact with the body'or mass of metal. V

11. In a device of theelas's described, a hollow mass of metal, a plurality of electrically operated heating elements therein, and

cooperating wedges engaging with the metal' lic mass and with said heating elements.

12. In a device of the class described, a hollow mass of metal, a plurality of electrically operated heating elements therein, and cooperating metallic wedges engaging res ectively with said heating elements and a so having metallic contact at a plurality of their edges with said mass of metal.

13.'In a device of the class described, a

body or mass of metal, an electrically operated heater therein, and cooperating wedges whereby'said heater is held in close contact with said body or mass of metal.

14. In a device of the class described, a

chambered metallic :body, an electrically operated heater in said body, and a plurality of wedges forelam ing said heater into close contact with said ody. 4

15. In a device of the, class; described, a chambered metallic body, n electrically operated heater in said body, and cooperating wedges engaging with said heater and with said body.

16. In a device of' the class described, a

chambered body, an electricalhater therein, and a plurality of wedges in mechanical contact with the body and operating to clamp said heater into close cdntact'with said body.

17. In a device of the'class described, a chambered body,'a plurality of electrical heaters therein, and cooperating Wedges engaging with the respective heaters for clamping them into close contact with said body.

- 18. In a device of the class described, a chambered body of heat absorbing metal, a plurality of electrical heaters disposed in spaced order therein, and intermediate cooperating wedges for clamping said heaters in close contact with said body.

19. In a device of theclass described, a

Witnesses;

JAs. H.GR1FF1N, H. I. BnRNnARn. 

